APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -Mucosa (mucous membrane) is the innermost layer lining the lumen of the alimentary canal. Since it secretes mucus to lubricate the inner lining of the gut it is called mucosa . This layer forms irregular folds called rugae in the stomach.

Detailed explanation-2: -The innermost layer of the lining of alimentary system is made up of mucosa which forms temporary irregular folds in stomach called rugae.

Detailed explanation-3: -Gastric rugae are the redundant folds of gastric mucosa that are most prominent when the stomach is collapsed. The reservoir and mixing functions of the stomach demand a thick, expansile, muscular vessel, which characterizes gastric morphology. Gastric mucosa is composed of columnar epithelium.

Detailed explanation-4: -In anatomy, rugae are a series of ridges produced by folding of the wall of an organ. Most commonly rugae refers to the gastric rugae of the internal surface of the stomach.